document.write( "Question 1002920: Please help me solve this.
\n" ); document.write( "simutaneous equations
\n" ); document.write( "3x - 2y=12,
\n" ); document.write( "X+3y=-7 \n" ); document.write( "

Algebra.Com's Answer #619770 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+x+%2B+3y+=+-7+\"$
\n" ); document.write( "Multiply both sides by $\"+3+\"$ and subtract
\n" ); document.write( "this equation from the other one
\n" ); document.write( " $\"+3x+-+2y+=+12+\"$
\n" ); document.write( " $\"+-3x+-9y+=+21+\"$
\n" ); document.write( "-----------------
\n" ); document.write( " $\"+-11y+=+33+\"$
\n" ); document.write( "Divide both sides by $\"+-11+\"$
\n" ); document.write( " $\"+y+=+-3+\"$
\n" ); document.write( "------------
\n" ); document.write( "Plug this result back into one of the equations
\n" ); document.write( " $\"+x+%2B+3%2A%28-3%29+=+-7+\"$
\n" ); document.write( " $\"+x+-+9+=+-7+\"$
\n" ); document.write( "Add $\"+9+\"$ to both sides
\n" ); document.write( " $\"+x+=+2+\"$
\n" ); document.write( "-------------
\n" ); document.write( " $\"+x+=+2+\"$
\n" ); document.write( " $\"+y+=+-3+\"$ \n" ); document.write( "

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